JTM45 Not Loud

Get support and show off your MetroAmp JTM 45 kit builds.

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spaceace76
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Re: JTM45 Not Loud

Post by spaceace76 » Fri Aug 28, 2009 12:00 pm

LJay942 wrote:Just wanted to report back and say that it was in fact the capacitor not being grounded correctly on the Presence pot. Are correct, I should really read the manual for my multimeter :oops:
Glad to hear you sorted it out :mrgreen:

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LJay942
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Re: JTM45 Not Loud

Post by LJay942 » Fri Aug 28, 2009 2:31 pm

408v DC on pin 3 of both power tubes :)

It's really hard to explain. The solder joint looked perfect (nice and shiny and flowed really nice. But when you pulled on the lead it slide through the ground lug (cold joint). Talk about a bitch to find. But now she screams!

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Re: JTM45 Not Loud

Post by MBD115 » Fri Aug 28, 2009 9:12 pm

Good going!!!! Glad you got it figured out.

Is it loud now :D

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LJay942
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Re: JTM45 Not Loud

Post by LJay942 » Fri Aug 28, 2009 9:22 pm

MBD115 wrote:Good going!!!! Glad you got it figured out.

Is it loud now :D
Scares the dog and makes things on the desk shake!

Another tech tip. If the amp sounds dull and flat. Check your tone controls :oops:
(Rookie mistake number 2)

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spaceace76
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Re: JTM45 Not Loud

Post by spaceace76 » Fri Aug 28, 2009 11:52 pm

LJay942 wrote:
MBD115 wrote:Good going!!!! Glad you got it figured out.

Is it loud now :D
Scares the dog and makes things on the desk shake!

Another tech tip. If the amp sounds dull and flat. Check your tone controls :oops:
(Rookie mistake number 2)
ahhh man. that's my favorite. when the tuner falls off the top of the amp...

this year at amp show, the gold cover from a marshall made knob on one of George's 45/100's fell off. he put it back on a few times, but it kept falling off from the enormous volume. it was awesome :mrgreen:

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LJay942
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Re: JTM45 Not Loud

Post by LJay942 » Sat Aug 29, 2009 3:50 am

spaceace76 wrote:
LJay942 wrote:
MBD115 wrote:Good going!!!! Glad you got it figured out.

Is it loud now :D
Scares the dog and makes things on the desk shake!

Another tech tip. If the amp sounds dull and flat. Check your tone controls :oops:
(Rookie mistake number 2)
ahhh man. that's my favorite. when the tuner falls off the top of the amp...

this year at amp show, the gold cover from a marshall made knob on one of George's 45/100's fell off. he put it back on a few times, but it kept falling off from the enormous volume. it was awesome :mrgreen:

That's awesome!

I want to build a 100w head. (I'm just a hobbyist, no band and no gigs) I only have a 2x12 cab w/ Greenbacks so I'm looking at picking up another 2x12 and making a cracked stack or swapping the Greenbacks for a pair of Scumbacks that can handle the power.

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wildebassman
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Re: JTM45 Not Loud

Post by wildebassman » Sat Aug 29, 2009 5:06 am

Happy for you that you got the amp up an' running!

Cheer,

Dennis.
Amps: JTM 45, JTM 50, under construction: JCM 2204. CAB: 2x12" G12H 30 55Hz. Heritage.

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Re: JTM45 Not Loud

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